OPTICAL RANDOM ACCESS MEMORY HAVING DIFFRACTIVE SIMPLEX IMAGING LENS

摘要

An optical memory (100) in which data is stored in an optical data layer (190) capable of selectively altering light such as by changeable transmissivity. Data is organized into a plurality of regions or patches (called pages) in which each page contains a field of data spots storing binary data as the presence or absence of a hole. The data is illuminated by controllable light sources (150) and an array of single element diffractive imaging lenslets (210), one for each data page, projects the image onto a common array of light sensors (270).